Dimetrodon SOLD 1.37" Neural Spine Fragment mm1 This extra padding will keep

This extra padding will keep the tooth snug in the case after the lid is secured

This specimen is a fossilized Xiphactinus vertebra which measures around 1

it will powder under pressure

42" Ordovician Ophiurida Brittle Star

Dimetrodon SOLD 1.37" Neural Spine Fragment mm1 This extra padding will keepRare Permian Material! If all fossils are out of stock, sign up for email notifications as we do expect to get more over time. With a fearsome jaw and reptilian appearance, Dimetrodon is often mistaken for a dinosaur. However, this family of Early Permian Age species falls into a disparate taxonomic clade known as Synapsids which includes Mammals. This specimen is a 1. 37" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail